I bought this at the flea market this morning for $10. Aluminum handle, 7 inch blade, 12 inches overall. The blade is pretty thick at the hilt. No ID to the owner, when or where.  My questions relates to what type bayonet or sword donated their blade to this knife. Anybody got an idea? Knowing that I can probably back in to what theater it was made in. The search for a vintage knife sheath begins. Thanks!  

The chinstraps are not US, they are European clones.

Merci Cobra  6 Réel  oui ont peut considérer cet objet comme tel, merci d’ avoir jeté un œil sur le sujet et pour votre commentaire ! 

Looks like a good German-made patch to me.  I like the type of bullion used.  

The attached photo below is a typical T-1 chinstrap set up.  The helmet posted is not normal

Hi, does anyone has knows or have sone news about subscriver Boy Howdy? We have an agreement for a deal and i send him the money and several messages but i have no answer. i can have my money back from PayPal but i would like to understand what’s happen. thanks

For a survival kit, but used to keep my wallet in it also

The M1 helmet shell was the same for bot the M1 and M1C. The liners where different configuration as were the chinstraps. As stated prior the M1C had the extra tab with snap to secure the liner to the shell to reduce or prevent separation of the liner and shell when parachuting.    This said it is not uncommon to see  airborne liners used in a M1 shell with standard straps. There are several photos of Marines in Vietnam wearing airborne liners in phptos by David Duncan Douglas. Possible the Marines were issued these to fill a requirement or shortage or to use when aboard helicopters etc. A liner is a liner as they. ALso not uncommon to see the Marines still using WW2 era helmet covers in early vietnam. The mosquito net style shows up in photos as does the standard hbt covers.   

Thanks for the detailed explanation, now it’s super clear about the little short straps! So the only difference between an M1 steel pot and an M1-C is the chinstrap? I suppose The shell is the same?   I’ve searched and read several topics on the forum, I know there are tons of info but I preferred to ask time being completely now in collecting M1 helmet 😄

Hi again, This bullion patch is now offered on ebay and I think this also a replica, so I attached my question on this thread. If I'm wrong , please let me know. Thank you.